Device with a Differential Output Stage

A device with a differential output stage, which has a first and a second half bridge, in which respectively a first transistor and a second transistor are connected in series, where the transistors each have a control input that is connected to a driver assigned respectively to it,

• where a section of the first half bridge located between the transistors of the first half bridge is connected to a first signal output for a first partial signal of a differential voltage signal, and
• where a section of the second half bridge located between the transistors of the second half bridge is connected to a second signal output for a second partial signal of the differential voltage signal,
• and with a fault detection circuit to detect a fault, wherein
• a transistor of the first half bridge is part of a first current mirror that has a first current path, which is designed and coupled to the driver assigned to this transistor, in such a manner that when an output current in the first transistor of the first half bridge flows in the first current path, a first test current proportional to this output current flows,
• a transistor of the second half bridge is part of a second current mirror that has a second current path, which is designed and coupled to the driver assigned to this transistor, in such a manner that when an output current in the first transistor of second half bridge flows in the second current path, a second test current proportional to this output current flows,
• the first current path and the second current path are connected to a summation node to add up the first and second test current, and that the fault detection circuit has a comparator that is connected to the summation node to compare the sum current from the first and second test current with a reference value or a reference value range.